2018 AUDI A8 cruise control

Table of contents
About this Owner's Manual. . . . . .
6
Cockpit . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Cockpit overview . . . . . . . . . . . . . . . . . 7
Controls at a glance . . . . . . . . . . . . . . . . . . 7
Instrument cluster . . . . . . . . . . . . . . . . . . . 9
M ultif unction steering wheel . . . . . . . . . . 11
Driver information system . . . . . . . . . . . . . 12
T ime and date display . . . . . . . . . . . . . . . . 16
H ead-up display . . . . . . . . . . . . . . . . . . . . . 16
Indicato r lights . . . . . . . . . . . . . . . . . . . . . 17
O n-B oard Diagnost ic System (OB D) . . . . . 25
Starting and driving . . . . . . . . . . . . . 27
Opening and closing . . . . . . . . . . . . . 27
Cent ral lock ing . . . . . . . . . . . . . . . . . . . . . . 27
L ugg age com pa rt ment lid . . . . . . . . . . . . . 33
Ch ild safety lock . . . . . . . . . . . . . . . . . . . . . 36
P ower window . . . . . . . . . . . . . . . . . . . . . . 37
Sunroof. . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Panorama glass roof . . . . . . . . . . . . . . . . . 39
Valet par king function . . . . . . . . . . . . . . . . 40
Garage doo r opener (Home Link) . . . . . . . . 41
Lights and Vision . . . . . . . . . . . . . . . . . 43
Exterior lighting . . . . . . . . . . . . . . . . . . . . . 43
Interior lighti ng . . . . . . . . . . . . . . . . . . . . . 46
V1s1on . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
W indshield w ipe rs . . . . . . . . . . . . . . . . . . . 50
D ig ita l compass . . . . . . . . . . . . . . . . . . . . . 52
Seats and storage . . . . . . . . . . . . . . . . 54
Gene ral information . . . . . . . . . . . . . . . . . 54
Fr ont seats . . . . . . . . . . . . . . . . . . . . . . . . . 54
Rear seats . . . . . . . . . . . . . . . . . . . . . . . . . . 5 6
Head restraints . . . . . . . . . . . . . . . . . . . . . 58
M emory function . . . . . . . . . . . . . . . . . . . . S9
12 volt sockets . . . . . . . . . . . . . . . . . . . . . . 61
llSvoltsocket . ............. .... .. . 61
Fu ll-length center console. . . . . . . . . . . . . 62
Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
L uggage compartment . . . . . . . . . . . . . . . 65
P ass-throug h w it h ski bag . . . . . . . . . . . . . 66
R efrige rato r . . . . . . . . . . . . . . . . . . . . . . . . 67
Warm and cold . . . . . . . . . . . . . . . . . . . 69
D eluxe a utomat ic cli ma te contro l . . . . . . . 69
2
Driving ... .. .. .... .. ... .. ..... ... . .
Genera l information . .... .. ..... ... . .
Steering . ... .. .... .. ... .. ..... ... . .
Start ing and stopping the eng ine ..... . .
Start/Stop system .. .. ............. . .
E lectromechanical parking brake ...... .
Start ing to drive .. .. .. .............. .
A utomat ic transmission
Trailer towing ... .. .............. .
D rivi ng with a tra ile r .. .............. .
T ra ile r towing information .......... . .
Driver assistance .. .............. .
Assistance systems .. .. ..... ... . .
S peed warning system . ............. . .
Cru ise cont rol sys tem . ............. . .
Audi adaptive cruise contro l ...... ... . .
Audi active lane assist (lane departure 73
73
7 5
76
78
81
82
83
89 89
9 1
93
93
93
93
95
assist) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103
Audi s ide ass ist . . . . . . . . . . . . . . . . . . . . . 105
N ight vision assist w ith pedestrian and
wild animal detection . . . . . . . . . . . . . . . . 109
Audi drive select (drive setti ngs) ........ 111
Parking systems . . . . . . . . . . . . . . . . . 115
General information . . . . . . . . . . . . . . . . . 115
Parking system plus ... ............... 116
Rearv iew camera . . . . . . . . . . . . . . . . . . . . 117
Per iphera l came ras . . . . . . . . . . . . . . . . . . 120
Adjus ting the d isp lay and the wa rn in g
tones. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125
Error messages . . . . . . . . . . . . . . . . . . . . . 125
T raile r hitch . . . . . . . . . . . . . . . . . . . . . . . . 125
Intelligent Technology . . . . . . . . . . 127
E lectronic Stabi lization Contro l (ESC). ... 127
Brakes .... .. .. .. .. .. ............. .. 129
E lectromechanical steering, dynamic
steering . . . . . . . . . . . . . . . . . . . . . . . . . . . 130
All wheel drive (quattro) . . . . . . . . . . . . . . 131
Energy management . . . . . . . . . . . . . . . . . 131
Notice about data recorded by the Event
Data Recorder and veh icle co ntro l
modules . . . . . . . . . . . . . . . . . . . . . . . . . . . 133

Cockpit overv ie w
CD
@
®
©
®
®
Door hand le
S ide assist d isp lay
Cent ral lock ing switch ....... .. .
Side assist button .. ..... ... .. .
A ir vents w ith thumbwheel
L ever fo r:
- Turn signals and h igh beams
- High beam assistant ... ... .. .
- Active lane assist . ..... ... .. .
(J) Multifunction steering wheel with :
- Horn
- Drive r's airbag ............. .
- Drive r informat io n system con -
trols .. .. .. ............... .
- Audio/v ideo, telephone, naviga­
t ion and voice recognition con -
t rols .. .. .. ............... .
- Shift paddles
and ~ button for
manual shifting ............ .
@ Ins trumen t cluster . ..... ... .. .
® W indshield washer system lever
@ H ead-up display ........... .. .
@ Buttons/ indicator light for :
- Start/Stop system .......... .
- Extending/retract ing t he Info-
ta inment system display . .. .. .
- E lectron ic Stabili zation Contro l
(ESC) .. .. .. ............. .. .
- Emergency flashers ....... .. .
@ Starting the eng ine if there is a
malfunct ion
@ Knee airbag
~ Buttons for :
- Stee ring wheel adjustmen t ... .
- Stee ring wheel heat ing
@ Lever for:
- Cru ise control system ....... .
- Adaptive cruise control .... .. .
@ Butto n for sw itch ing the head- up
d isp lay on/off , adjust ing t he
h e igh t .. .. .. ............. .. .
8
105
3 1
105
44
44
103
23 1
1 2
11
86
9
so
1 6
78
136
128
46
78
24 1
75
7 2
93
95
1 6
@ Instr ument i llumination .. ..... .
@ Hood release .. .. .. .......... .
@ Data lin k co nne ctor fo r On-Board
Di agnos tic Sys tem (OB D II) .....
@ Light sw itch
@ Buttons for:
- All -weather lights
- Night v is ion assis t .......... .
- Rea r fog lights . .. .......... .
@ Exterior mi rror adjustment .... .
@ Switch for luggage compartment
l id ........ ... .. .. .......... .
@ B uttons for:
- Powe r windows .. .......... .
- Ch ild safety lock . .... .. ..... .
@ Memory funct io n buttons ...... .
@) Infotainment system d isplay
@ B uttons/indicator light for:
- PA SSE NG ER AIR BAG OFF .... .
- Park ing system ... .......... .
- Power sunshade (rear blind) .. .
@ Glove comp artment .......... .
@) Front passenger's airbag ...... .
@ Valet Park ing funct ion ........ .
@ Analog cloc k .... .. ... .. ..... .
@ Climate contro l system ........ .
@ Infota inment system u nit ..... .
@ Se lector lever (automatic transmis -
s ion) ... .. .. .. .. .. .......... .
@ Center conso le w ith cup holder ..
@ Buttons for:
- Electromechan ica l park ing bra ke
@ I START EN GINE STO P! button
(D Tips
43,47
272
25
43
109
43
47
33
37
36 59
136
23 7
115
49
64
231
40
16
70
135
83 63
81
76
Some the equipment l isted here is only instal ­
l ed i n certa in models or is available as a n op­
tion.

Cockpit overv ie w
USA mod els : speed warning sys­
tem
¢ page 93
Ca nad a models: speed warning
system
¢ page93
Adaptive cruise contro l*./
¢ page 97
Air s uspension
¢ page22
Night vision ass ist*
¢ page 109
Night vision ass ist*
¢ page 109
Yello w indic ator light s
18
-------------Elect ronic Stab ilizat ion Control
( E SC)
./
¢ page 22
Electronic Stabilizat ion Control
(ESC)
./
¢ page22
USA models:
Ant i-lock braking system (ABS)./
¢page22
Canada mod els:
Anti -loc k braking system (ABS) ./
¢ page22
USA mod els: safety systems
¢ page23
Ca nad a models: safety systems
¢ page23
Brake pads
¢ page23
Electromechanical parking brake
¢ page20
Tire pressure monitoring system
.I
¢page300
Tire p ress ure mon itor ing system
¢ page 300
Eng ine control (gasol ine engine)
.I
¢ page23
Malfunction Indicator Lamp (MIL)
.I
¢page23
Engine speed limitation
¢ page23
Engine oil leve l
¢page 21
Engine oil sensor
¢page24
Engine wa rm-up request
¢ page24
Battery charge
¢page 21
Tank system
¢page24
Washer flu id leve l
¢page24
Windshield wipers
¢page24
Remote contro l key
¢ page 77
Remote contro l key
¢ page 78
Battery in remote contro l key
¢page29
Bu lb fa ilu re indicator
¢ page24
Rear fog lights
¢page24
Headlight range control system
¢page24
Adaptive light*
¢page44
Light/rain sensor
¢page 25
Active lane assist *
¢page 104
Transm ission
¢ page 87
Transm ission
¢page 87

u. co .... N
" N .... 0 0 :c ' Steering lock
¢ page 21
Eng ine start system
¢ page22
Brake booster
¢page23
Electromechanical power steer­
i ng, dynam ic
steering*../
¢ page 130
Air s uspension
¢ page 22
Sport differe ntia l*
¢ page 25
Other indic ator lights
-------------
Tur n signa ls
¢ page 25
USA mod els:
C ruise control system
¢ page 93
Canada models:
Cruise contro l system
¢ page 93
Adaptive c ruise contro l*
¢ page 97
Adaptive c ruise contro l*
¢ page 97
Adaptive c ruise contro l*
¢page 97
Active lane assist*
¢page 104
Start/Stop system*
¢page 78
Start/Stop system*
¢page 78
High beam assistant
¢page44
High beams
¢ page 44, ¢ page 44
BRAKE/( ©) Brake system
If t his ind icator lig ht tu rns on, the re is a ma lfu nc­
tion in the brake system.
Coc kpit o ver view
llll vehicle and check brake fluid le vel
Stop t he veh icle a nd check t he b rake fl uid level.
See a n author ized A udi dealer or author ized A udi
Se rvice Facility for assistance if necessary.
1111 (USA model s) /. (Canad a mod els)
Brake s: malfunction! Stop v ehicl e safely
If the ABS ind icator light llll) (USA models) /
~ (Canada models), the ESC ind icator light DJ .
and the b rake system indicato r light 1111 (USA
models)/ . (Can ada models) all tu rn o n and
t hi s message appea rs, then the ABS, ESC and
braking d istribution are
ma lfunctioning ¢&. .
Do not continue dr iv ing . See a n author ized Audi
dealer or author ized A udi Se rvice Fac il ity for as­
s istance ¢&. .
1111 (USA model s) /. (C anad a model s) Park­
ing brak e system fault! See owner' s manual
- If the ind icator light and the message appear
when the vehicle is stationary or after switch­
ing the ignition on ,
check if you can release the
pa rk ing bra ke. If you cannot release t he pa rk­
ing b rake , see a n author ized A udi dealer or au­
t hor ized A udi Se rvi ce Fac ility. If you can release
the parking brake and the message sti ll ap ­
pears, see an authorized Audi dealer or author­
ized Aud i Service Faci lity immediately to have
the malfunction corrected.
- If the indicator lig ht and message appear
while
dri ving ,
the hill start ass ist or emergency brak­
ing function may be ma lfunctioning. It may not
be possible to set the parking brake or release
it once it has been set . Do not park your vehicle
on hills . See an authorized Aud i deale r or au­
thor ized A udi Service Fac ility for assistance.
Applies to: USA models
If the 1111 and rlJ turn on at the same time, the
brake pads are worn out
r=;, page 23 .
A WARNING
-Read and follow the warnings in
¢ page 2 72, Working in the engine com­
partment
befo re opening the hoo d and
checking the brake fluid level.
19

Driving
keep your foot on the brake in all selector
lever positions (except P and N) when the
engine is running.
- Do not inadvertently press the accelerator
pedal when the vehicle is stationary. Other­
wise the vehicle will start to move immedi­
ately, even if the parking brake is set. This
could result in a crash.
~ Note
-When stopping on an incline, do not try to
hold the vehicle in place by pressing the ac­
celerator pedal while a driving gear is se­ lected . This can cause the transmission to
overheat and can damage it . Set the parking
brake or press the brake pedal to prevent
the vehicle from rolling.
- Allowing the vehicle to roll when the engine
is stopped will damage the transmission be­
cause it is not lubricated.
(D Tips
For safety reasons, the parking brake is re­
leased automatically only when the driver's
safety belt is fastened.
Hill descent control
The hill descent control system assists the driver
when driving down hills .
Hill descent control activates when the transmis­
sion is in the Dor S position and you press the
brake pedal. The transmission automatically se­
lects a gear that is suitable for the hill. Hill de­
scent control tries to maintain the speed ach­
ieved at the time of braking, within physical and
technical limitations. If may still be necessary to
adjust the speed with the brake pedal.
Hill descent control switches off once the hill lev­
els out or you press the accelerator pedal.
When operating the cruise control system
c::> page 93, hill descent control is also activated
when the speed is set.
86
A WARNING
, -
Hill descent control cannot overcome physical
limitations, so it may not be able to maintain
a constant speed under all conditions. Always
be ready to apply the brakes .
Manual shifting
The shi~ paddles allow the driver to shift the
gears manually.
Fig. 98 Steering whee l: shi fting manually
.. To shift to a higher or lower gear temporarily,
tap the
0 or 0 shift paddle <=:>fig. 98.
.. To switch manual mode on, press the ~ but­
ton. Mand the gear that is currently engaged
@ appear in the instrument cluster display
c::> page 83, fig. 95 .
.,. To shift up one gear, tap the right shift paddle
G) c::>fig . 98.
.,. To shift down one gear, tap the left shift pad­
dle
0 .
.,. To switch manual mode off, press the ['.fl but-
ton again, or
.. Move the selector lever back and release it.
When you accelerate or reduce the speed, the
transmission automatically shifts into the correct
gear shortly before reaching the RPM limit. If you
select a lower gear than the one currently shown
in the display, the automatic transmission will
only shift down once there is no danger of ex­
ceeding the maximum RPM.
The engine braking effect increases when you
downshift when going downhill.

lL t:0 ....
"' ......
"' .... 0 0 :c ' Assistance systems Speed warning system
The speed warning system helps you to stay un­
der a specified maximum speed.
The speed warning system warns you if you are
exceeding the maximum speed that you have set.
A warning tone will sound as soon as your speed
exceeds the stored value slightly.
The. (USA models)/ . (Canada models) indi­
cator light and a message appear in the instru­
ment cluster display at the same time. The
•
• indicator light and the message turn off if the
speed falls back below the stored maximum
speed.
Setting a threshold is recommended if you would like to be reminded when you reach a certain
maximum speed. Situations where you may want
to do so include driving in a country with a gener­
al speed limit or if there is a specified maximum
speed for winter tires.
Setting the warning threshold
The warning threshold is set in the Infotainment
system.
.. Select: I CARI function button > Car systems
contro l button > Driver assistance > Speed
warning.
(D Tips
Regardless of the speed warning system, you
should always monitor your speed using the
speedometer and make sure you are following
the legal speed limit.
Assistance systems
Cruise control system
Switching on
The cruise control system makes it possible to
drive at a constant speed starting at 20 mph (30
km/h).
0
f
®t
0
Fig. 102 Operating lever: cruise control system
g M 0 :i: ;A
.. To switch the cruise control on, pull the lever
into position
(D ¢ fig. 102.
.. Drive at the speed to be maintained.
.. To store the speed, press the button @.
The stored speed and the
(ij;ji)M~ (USA models) /
l'I (Canada models) indicator light are displayed
in the instrument cluster.
This information is also shown briefly in the
head-up display* .
The speed is maintained by modifying engine
power or through an active brake intervention.
_.&. WARNING
-
-Always pay attention to the traffic around
you when the cruise control system is in op ­
eration. You are always responsible for your
speed and the distance between your vehi­
cle and other vehicles.
-For safety reasons, cruise control should not
be used in the city, in stop-and-go traffic, on
winding roads and when road conditions are poor (such as ice, fog, gravel, heavy rain and
hydroplaning), because this increases the
risk of an accident.
-Switch the cruise control off temporarily
when driving in turning lanes, highway exits or in construction zones.
~
93

Assistance systems
-Please note that unconsciously "resting"
your foot on the accelerator pedal prevents
the cruise control from braking. This is be­
cause pressing the accelerator pedal over­
rides the cruise control system.
- If a brake system malfunction such as over­
heating occurs when the cruise control sys­
tem is switched on, the braking function in
the system may be switched off. The rest of
the cruise control system funct ions remain
active as long as the
@;\IM~ (USA models) /
l'I (Canada models) indicator light is on.
(D Tips
The brake lights turn on when the brakes are
applied automatically.
Changing the speed
.,. To incr ease or decrease the speed in incre­
ments, tap the lever toward
010 ¢ page 93,
fig . 102.
.. To increase or decrease the speed quickly, hold
the lever in the
0 10 direction until the de­
s ir ed speed is displayed.
You can a lso press the accelerator pedal down to
increase your speed, for example if you want to
pass someone. The speed you set earlier w ill re­
sume as soo n as you release the accelerator ped­
al.
However, if you exceed your saved speed by 5
mph (10 km/h) for longer than 6 minutes, the
cru ise control system turns off temporarily.
The
green@;\1)~1~ (USA mode ls) !l'I (Canada mod ­
els) indicator light in the speedometer turns off
and the stored speed is maintained.
Preselecting a speed
You can pre-select your desired speed when the
vehicle is stationary.
.. Switch the ignition on .
.. Pull the lever into position (D i::> page 93,
fig. 102 .
.. To increase or decrease the speed, push the lev­
er toward
0 10 .
94
.. To store the speed displayed, release the lever.
This function makes it possible , fo r example, to
save the speed you want before driving on the
highway. Once on the highway , activate the
cruise contro l by pulling the lever toward
(D.
Switching off
Deactivating temporarily
.. Press the brake pedal, or
.. Press the lever into position @(not clicked into
place)
¢ page 93, fig. 102, or
.. Dr ive for longer than 5 minutes faster than 5
mph (10 km/h) above the stored speed.
Switching off completely
.. Press the lever into position@(clicked into
place), or
.. Switch the ignition off .
The speed you stored will be maintained if the
cruise contro l has been switched off temporarily .
T o resume the stored speed, release the brake
pedal and pull the lever into position
(D.
Switching the ignition off will erase the stored
speed.
A WARNING
You sho uld only resume the stored speed if it
is not too high for existing traffic conditions.
Otherwise you can increase the risk of an acc i­
dent.

lL t:0 ....
'"" ......
'"" .... 0 0 :c ' Audi adaptive cruise control
Description
Applies to: vehicles with Audi adaptive cruise control
Fig . 1 03 Detect ion range
The adaptive c ruise co ntro l system is a comb ina­
tion of speed and d ist ance regula tion. It assists
the dr iver by bot h regula ting the speed and
maintaining a distance to the vehicle driving
ahead , within the limits of the system . If the sys­
tem detects and object ahead, adaptiv e cruis e
control can brake and acce lerate your vehicle.
Th is makes driving more comfortable both on
long stretches of highway and in stop-and-go
traffic .
What can adaptive crui se contr ol do?
The adaptive cruise contro l system uses video, ra ­
dar and ultraso und. Objects driving ahead can be
recogni zed up to 650 feet (200 m) away.
On open roads with no traffic , it functions like a
cru ise control system . T he stored speed is ma in­
tained. When approaching an object ahead, the
adapt ive cruise con trol system automatically
brakes to match that object's speed and then
maintains the stored d istance. As soon as the
sys tem does not detect a n object ahead, adaptive
cru ise con trol acce lera tes up to the stored speed .
In stop-and -go traff ic, adaptive cru ise control can
brake unt il the vehicle is s tat io nary and then be­
g in d riving aga in under certain conditions
¢ page 98.
Aud i braking guard can warn you about an im ­
pending col lision and initiate braking maneuve rs
¢ page 100 .
Assi st a nce systems
Which functions can be controlled?
When yo u swi tc h adap tive cr uise control on, you
can set t he current speed as the "contro l speed "
¢page 97, Switching on/off .
When driving, yo u can stop cru ise cont rol
¢ page 99 or ch ange t he speed ¢ page 98 at
any t ime.
Yo u c an also se t the distance to the object mov­
i ng ahead and set the d riving mode of the adap­
tive cr uise
con trol ¢ page 99.
General information
Applies to: vehicles with Audi adaptive c ruise con trol
Fi g. 10 4 Front of t he ve hicle: se nso rs and v ideo came ra
T he areas that co nta in the radar and ult rasonic
senso rs and the video
came ra¢ fig . 104 must
no t be cove red by st ickers, depos its o r othe r ob­
jects because they can inter fere with the function
of the adaptive cru ise control system and braking
guard . For information on clea ning, see
¢ page 306. The same applies for any modifica­
tions made in the front area.
T he function of the adaptive cru ise control sys ­
tem and bra king g uard is limited under some
condit ions.
- Objects can on ly be de tected when they are
w ith in the sensor range
¢ page 95 , fig . 103 .
-The sys tem h as a limited abili ty to detect ob­
jec ts that are a shor t distance ahead, off to the
side of yo ur vehicle or mov ing into your lane.
- Ob jects that are difficult to detect such as mo­
torcycles, vehicles with high g ro und clea rance
or an overhanging load a re detected late or not
detected at all.
- W hen drivi ng through cu rves
¢ page 97 . .,.
95